A tubal ligation if performed properly then it gives 100% precaution, but very rarely tubal ligation failure occurs. This is an effective way of contraception, but in extreme cases they fail to prevent pregnancy. In tubal ligation failure, they try to repeat the procedure.
Causes of Tubal Ligation Failure
This failure is caused because of many reasons.Some of the reasons for tubal ligation failure are as follows:
In some cases, a woman conceives before the procedure is done and pregnancy is diagnosed later. In this case it cannot be told as a failure because the woman was pregnant before the procedure of sterilization.
- Sometimes, a fistula or a re-anastomosis is formed at the ends of the tube that grows back together when the gap between them is not very large.
- In extra-coagulation method of tubal sterilization, the ovum can enter into the tube and result in an unintended pregnancy.
- In cases, where a falope ring is used then the clamp can get loose or fall off.
- Another risk related to this bipolar extra coagulation type of sterilization is ectopic pregnancy that follows after this type of tubal ligation.
- If the procedure is done in an improper way that is if the tube is not blocked totally or not cut properly or if the device used for the occlusion was not placed properly in the right position.
- The round ligaments are tied mistakenly instead of fallopian tubes. As a result sterilization is not done properly and tubal ligation failure occurs.
- If the ligature slips or the other occlusive device.
- Obesity or pelvic adhesions might have made the procedure difficult.
- Inefficiency or inability of the surgeon to complete the procedure effectively or problem with the equipment.
- The failure rate depends upon the technique used to perform tubal ligation. If the procedure used causes more damage to the tubes like the extracoagulation methods or postpartum partial salpingectomy where a large portion of the tube is excised. Then there is lesser rate of tubal ligation failure.
- If a procedure causes least damage to the tubes like the use of clamps and clips then they have the highest failure.
- If hysteroscopic method of tubal sterilization is done then you may have to take contraceptives for 3 months. But if you do not go for an alternative method of contraception then it may fail.
These can cause in re-establishing the fallopian tube continuity which causes pregnancy.
Therefore, these are some of the causes for tubal ligation failure. So, when you undergo this sterilization procedure, see that you do not have the same problems.